663204042 has 36 divisors (see below), whose sum is σ = 1457665170. Its totient is φ = 217924560.

The previous prime is 663204023. The next prime is 663204043. The reversal of 663204042 is 240402366.

663204042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 579316761 + 83887281 = 24069^2 + 9159^2 .

It is a junction number, because it is equal to n+sod(n) for n = 663203997 and 663204015.

It is not an unprimeable number, because it can be changed into a prime (663204043) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 87084 + ... + 94392.

Almost surely, 2^663204042 is an apocalyptic number.

663204042 is an abundant number, since it is smaller than the sum of its proper divisors (794461128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663204042 is a wasteful number, since it uses less digits than its factorization.

663204042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7459 (or 7385 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 663204042 is about 25752.7482416926. The cubic root of 663204042 is about 872.0653980144.

The spelling of 663204042 in words is "six hundred sixty-three million, two hundred four thousand, forty-two".